Influence of Zn2+ and Si4+ codoping on luminescence properties of CaWO4:Eu3+ phosphor |
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| Authors: | Fengwen Kang Yihua Hu Li Chen Xiaojuan Wang Haoyi Wu |
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| Affiliation: | 1. School of Physics and Optoelectronic Engineering, Guangdong University of Technology, WaiHuan Xi Road, No. 100, Guangzhou 510006, PR China;2. Division of Energy and Environment Graduate School, Tsinghua University, Li Shui Road, Nanshan, Shenzhen City 518055, PR China |
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| Abstract: | The red afterglow phosphors of CaWO4 doped with Eu3+, Zn2+ or (and) Si4+ were prepared by solid state reaction. All crystalline phases were identified by the X-ray powder diffraction (XRD). The photoluminescence spectra and decay curves as well as thermoluminecence (TL) curves of all samples were also investigated. In comparison to CaWO4:Eu3+ phosphor, the luminescence and afterglow properties could be improved greatly after being doped with Zn2+ or (and) Si4+ ions. |
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